For someone already in detention when the new Act came in, the first review of the reasons for holding them ran under the old rules. That first review then counted as the review the current Act requires at the opening interval. Every review after it followed the current Act. One handover, then the new system takes over completely.
(1)The first review of reasons, after the coming into force of this section, for the continued detention of a person detained under the former Act shall be made in accordance with the provisions of the former Act.
(2)If the review referred to in subsection (1) was the first review in respect of a person’s detention, the period of detention at the end of which that review was made shall be considered the period referred to in subsection 57(1) of the Immigration and Refugee Protection Act.